A retinal detachment occurs when the retina separates from the tissue beneath it, preventing it from working properly. This can cause symptoms such as flashes, floaters, or a shadow or curtain moving across your vision. Without prompt treatment, a retinal detachment can lead to permanent loss of vision in the affected eye.

Retinal detachment usually begins with a tear in the retina and is more common with ageing. Risk is higher if you are very short-sighted, have had cataract surgery, experienced significant eye injury, or have a family history of the condition.

Treatment is surgical and usually performed under local anaesthetic. The most common procedure is a vitrectomy, where the vitreous gel is removed, the retina is sealed with laser, and a gas bubble or silicone oil is used to hold it in place. In selected cases, a scleral buckle may be used. Early treatment offers the best chance of preserving vision.